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Stock-Based Compensation (Details Narrative)
3 Months Ended
Oct. 31, 2016
shares
Stock Option Plan 2001  
Common stock reserved for future issuance 12,000,000
Common stock reserved for future awards 4,138,916
Stock Option Plan 2006  
Common stock reserved for future issuance 135,000,000
Common stock reserved for future awards 64,484,808
Stock Options  
Outstanding options 19,639,477
Outstanding options, weighted average remaining contractual term 2 years 6 months